58P5H1V1 is an unnamed c/5 diagonalspaceship discovered by Matthias Merzenich on September 5, 2010. In terms of its minimum population of 58cells it is the smallest known c/5 diagonal spaceship. It provides sparks at its trailing edge which can perturb gliders, and this property was used to create the first c/5 diagonal puffers. These sparks also allow the attachment of tagalongs which was used to create the first c/5 diagonal wickstretcher in January 2011.[1]